Jacquelynn Thomas, 42, was found dead in Monroe County, Michigan on September 2, 2000. Authorities treated her death as a homicide from the start, and the case remained unsolved for several years.

A major break came after the arrest of long-haul truck driver Dellmus Colvin in 2005 on unrelated DNA-linked murders. During Colvin’s September 2006 trial, facing the death penalty, he entered a plea agreement and confessed to killing five women, including Jacquelynn Thomas. He said he had picked Thomas up on September 1, 2000, killed her by strangling or smothering, and dumped her body, which was discovered the next day.

Colvin pleaded guilty to four counts of aggravated murder and one count of complicity to aggravated murder and received five consecutive life sentences. Did anyone who knew Jacquelynn or saw her in Monroe County around late August and early September 2000 notice anything that might help fill in the final movements of that day?